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Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.
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Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.Pressure Pipe Fittings · Flanges · Factory Direct

Since 1982. Pressure piping component manufacturer covering elbows, flanges, tees, reducers and project supply.

ISO 9001 quality system · ABS Type Approval · safety-registered manufacturer

Products

  • Elbow
  • Tee
  • Reducer
  • Flange
  • Pipe Bend

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Contact

  • Donglin, Mengcun County, Cangzhou City, Hebei Province, China
  • +86 132 9342 5333
  • +8613293425333💬 chat
  • sale@chinahaihao.com
  • www.haihaohuadian.com

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Insights

Insights & Knowledge Center

Technical articles, standards comparisons, project case studies and buyer guides on pressure piping components, flanges and forged fittings.

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107 articles· Buyer guide

8字盲板如何影响管道系统的安全性?Buyer guide
Buyer guide

How Figure-8 Blanks Improve Pipeline Safety: A Procurement Guide

Learn how figure-8 blanks (spectacle blinds) enhance pipeline isolation safety. This guide covers standards, material selection, inspection documents, RFQ checklist, and quality risks for procurement engineers.

Jun 25, 20264 min readHebei Haihao Group
行业专家谈8字盲板的关键性能Buyer guide
Buyer guide

Procurement Guide to Figure-8 Blinds: Key Performance and Specification Checklist

Figure-8 blinds are critical for pipe isolation. Learn what to check when sourcing them, from sealing and corrosion resistance to standards and inspection documentation.

Jun 25, 20268 min readHebei Haihao Group
8字盲板在高新技术领域的应用实例Buyer guide
Buyer guide

Figure-8 Blinds in High-Tech Piping Systems: A Procurement Guide

Learn how figure-8 blinds (spectacle blinds) are used in high-tech industries for isolation, and what procurement engineers need to consider when sourcing them from China.

Jun 24, 20268 min readHebei Haihao Group
选择合适对焊管件的重要性Buyer guide
Buyer guide

A Procurement Engineer's Guide to Selecting Butt Weld Fittings

Choosing the right butt weld fittings is critical for pipeline integrity, safety, and cost efficiency. This guide covers key procurement considerations, standards, inspection requirements, and RFQ best practices.

Jun 23, 20268 min readHebei Haihao Group
对焊管件在重工行业的应用实例Buyer guide
Buyer guide

Procurement Guide for Butt-Weld Fittings in Heavy Industry Projects

A practical guide for EPC buyers on specifying, inspecting, and sourcing butt-weld fittings for oil & gas, chemical, and power applications.

Jun 22, 20265 min readHebei Haihao Group
中低压管件法兰的设计与制造Buyer guide
Buyer guide

Procurement Guide for Medium and Low Pressure Pipe Fittings Flanges

Learn key considerations when sourcing medium and low pressure flanges and butt-weld fittings. Covers standards, materials, design factors, inspection requirements, and an RFQ checklist to help procurement engineers select reliable suppliers.

Jun 21, 20266 min readHebei Haihao Group
对焊法兰与承插法兰的比较分析Buyer guide
Buyer guide

Buttweld vs Socket Weld Flanges: A Procurement Engineer's Guide

Compare buttweld and socket weld flanges for high-pressure applications. Learn standards, inspection documents, RFQ checklist, and quality risks for industrial procurement.

Jun 20, 20267 min readHebei Haihao Group
锻制管件在环保中的应用Buyer guide
Buyer guide

Forged Fittings for Environmental Applications: A Procurement Guide for EPC Buyers

Learn how to source forged pipe fittings for environmental projects. Key standards, inspection documents, RFQ checklist, and quality risks explained for EPC engineers.

Jun 19, 20266 min readHebei Haihao Group
锻制管件在建筑领域中的应用Buyer guide
Buyer guide

Procurement Guide for Forged Pipe Fittings in Building Construction

Learn how to source forged pipe fittings for building projects. This guide covers standards, inspection documents, quality risks, and an RFQ checklist for procurement engineers.

Jun 18, 20266 min readHebei Haihao Group
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